package com.zsix.common.util;

import org.apache.http.Header;
import org.apache.http.NameValuePair;
import org.apache.http.client.CookieStore;
import org.apache.http.client.config.AuthSchemes;
import org.apache.http.client.config.CookieSpecs;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.*;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

public class HttpClientUtil {
    private static HttpClientContext context = HttpClientContext.create();
    private static RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(120000).setSocketTimeout(60000)
            .setConnectionRequestTimeout(60000).setCookieSpec(CookieSpecs.STANDARD).
            setExpectContinueEnabled(true).
            setTargetPreferredAuthSchemes(Arrays.asList(AuthSchemes.NTLM, AuthSchemes.DIGEST)).
            setProxyPreferredAuthSchemes(Arrays.asList(AuthSchemes.BASIC)).build();

    public static String doGet(String url, String data,String header,String context1) {
        CookieStore cookieStore = new BasicCookieStore();
        CloseableHttpClient httpClient = HttpClientBuilder.create().
                setKeepAliveStrategy(new DefaultConnectionKeepAliveStrategy()).
                setRedirectStrategy(new DefaultRedirectStrategy()).
                setDefaultCookieStore(cookieStore).
                setDefaultRequestConfig(requestConfig).build();
        String resultString = "";
        HttpGet httpGet = new HttpGet(url);
        if(StringUtils.isNull(context1)== false)
            httpGet.setHeader(header,context1);
        CloseableHttpResponse response = null;
        try {
            response = httpClient.execute(httpGet, context);
            resultString = EntityUtils.toString(response.getEntity(), "utf-8");
        }catch (Exception e){}
        return resultString;
    }
    public static String doGet1(String url, Map<String, String> param) {
        // 创建Httpclient对象
        CloseableHttpClient httpclient = HttpConnectionManager.getHttpClient();
        String resultString = "";
        CloseableHttpResponse response = null;
        try {
            // 创建uri
            URIBuilder builder = new URIBuilder(url);
            if (param != null) {
                for (Object key : param.keySet()) {
                    builder.addParameter(key.toString(), param.get(key));
                }
            }
            URI uri = builder.build();

            // 创建http GET请求
            HttpGet httpGet = new HttpGet(uri);

            // 执行请求
            response = httpclient.execute(httpGet);
            // 判断返回状态是否为200
            if (response.getStatusLine().getStatusCode() == 200) {
                resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
            }
            if(response.getStatusLine().getStatusCode()==302){
                Header header = response.getFirstHeader("location"); // 跳转的目标地址是在 HTTP-HEAD 中的


                httpGet = new HttpGet(header.getValue());
                httpGet.setHeader("Content-Type", "application/json;charset=UTF-8");


                response = httpclient.execute(httpGet);
                int  code = response.getStatusLine().getStatusCode();
                System.out.println("login" + EntityUtils.toString(response.getEntity(), "utf-8"));


            }


        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (response != null) {
                    response.close();
                }
                httpclient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return resultString;
    }

    public static String doGet(String url) {
        String resultString  = doGet(url, null,null,null);
        System.out.println(resultString);
        return resultString;
    }

    public static String doPost(String url, Map<String, String> param,String header,String context) {
        // 创建Httpclient对象
        CloseableHttpClient httpClient = HttpConnectionManager.getHttpClient();
        CloseableHttpResponse response = null;
        String resultString = "";
        try {
            // 创建Http Post请求
            HttpPost httpPost = new HttpPost(url);

            if(StringUtils.isNull(context)== false)
                httpPost.setHeader(header,context);
            // 创建参数列表
            if (param != null) {
                List<NameValuePair> paramList = new ArrayList<>();
                for (Object key : param.keySet()) {
                    paramList.add(new BasicNameValuePair(key.toString(), param.get(key)));
                }
                // 模拟表单
                UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList, "utf-8");

                httpPost.setEntity(entity);
            }
            // 执行http请求
            response = httpClient.execute(httpPost);
            if(response.getStatusLine().getStatusCode()==302){
                return "";
            }

            resultString = EntityUtils.toString(response.getEntity(), "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                response.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return resultString;
    }

    /**
     * http连接
     * param url
     * param param body 参数
     * param headerParam 头部参数
     * @return
     */
    public static String doPost(String url, String Json,Map<String,String>headerParam) {
        // 创建Httpclient对象
        CloseableHttpClient httpClient = HttpConnectionManager.getHttpClient();
        CloseableHttpResponse response = null;
        String resultString = "";
        try {
            // 创建Http Post请求
            HttpPost httpPost = new HttpPost(url);

            //创建Header参数列表
            if(headerParam!=null) {
                for (Object key : headerParam.keySet()) {
                    httpPost.setHeader(key.toString(),headerParam.get(key));

                }
            }
            // 创建body参数列表
            if (Json != null) {
                StringEntity s = new StringEntity(Json,"utf-8");
                s.setContentEncoding("utf-8");
                s.setContentType("application/json"); //发送json数据需要设置contentType  
                httpPost.setEntity(s);
            }
            // 执行http请求
            response = httpClient.execute(httpPost);
            if(response.getStatusLine().getStatusCode()==302){
                return "";
            }

            resultString = EntityUtils.toString(response.getEntity(), "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                response.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return resultString;
    }
    public static String doPost(String url, Map<String, String> param,Map<String,String>headerParam) {
        // 创建Httpclient对象
        CloseableHttpClient httpClient = HttpConnectionManager.getHttpClient();
        CloseableHttpResponse response = null;
        String resultString = "";
        try {
            // 创建Http Post请求
            HttpPost httpPost = new HttpPost(url);

            //创建Header参数列表
            if(headerParam!=null) {
                for (Object key : headerParam.keySet()) {
                    httpPost.setHeader(key.toString(),headerParam.get(key));

                }
            }
            // 创建参数列表
            if (param != null) {
                List<NameValuePair> paramList = new ArrayList<>();
                for (Object key : param.keySet()) {
                    paramList.add(new BasicNameValuePair(key.toString(), param.get(key)));
                }
                // 模拟表单
                UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList, "utf-8");

                httpPost.setEntity(entity);
            }
            // 执行http请求
            response = httpClient.execute(httpPost);
            if(response.getStatusLine().getStatusCode()==302){
                return "";
            }

            resultString = EntityUtils.toString(response.getEntity(), "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                response.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return resultString;
    }

    public static String doPost(String url) {
        return doPost(url, null,null,null);
    }

    /**
     * 请求的参数类型为json
     *
     * param url
     * param json
     * @return {username:"",pass:""} 1
     */
    public static String doPostJson(String url, String json) {
        // 创建Httpclient对象
        CloseableHttpClient httpClient = HttpConnectionManager.getHttpClient();
        CloseableHttpResponse response = null;
        String resultString = "";
        try {
            // 创建Http Post请求
            HttpPost httpPost = new HttpPost(url);
            // 创建请求内容
            StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);
            httpPost.setEntity(entity);
            // 执行http请求
            response = httpClient.execute(httpPost);
            resultString = EntityUtils.toString(response.getEntity(), "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                response.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return resultString;
    }

    public static void HttpDownloadFile(String urlPath,String toPath) {

        InputStream inputStream = getInputStream(urlPath);
        byte[] data = new byte[1024];
        int len = 0;
        FileOutputStream fileOutputStream = null;
        try {
            fileOutputStream = new FileOutputStream(toPath);
            while ((len = inputStream.read(data)) != -1) {
                fileOutputStream.write(data, 0, len);

            }
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {

            if (inputStream != null) {
                try {
                    inputStream.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if (fileOutputStream != null) {
                try {
                    fileOutputStream.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }

        }

    }


    // 从服务器获得一个输入流(本例是指从服务器获得一个image输入流)
    public static InputStream getInputStream(String urlPath) {
        InputStream inputStream = null;
        HttpURLConnection httpURLConnection = null;

        try {
            URL url = new URL(urlPath);
            httpURLConnection = (HttpURLConnection) url.openConnection();
            // 设置网络连接超时时间
            httpURLConnection.setConnectTimeout(3000);
            // 设置应用程序要从网络连接读取数据
            httpURLConnection.setDoInput(true);

            httpURLConnection.setRequestMethod("GET");
            int responseCode = httpURLConnection.getResponseCode();
            if (responseCode == 200) {
                // 从服务器返回一个输入流
                inputStream = httpURLConnection.getInputStream();

            }

        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return inputStream;

    }


}
